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Numerical simulation ultrahigh waterjet (WJ) flow field with the high-frequency velocity vibration at the nozzle inlet

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Abstract

This paper presents an investigation of ultrahigh pressure waterjet (WJ) flow field with the high-frequency velocity vibration at the nozzle inlet by computational fluid dynamics method. The velocity field of the flow inside the WJ nozzle is obtained. The influence of vibration parameters, such as amplitude and frequency on the flow field are studied. The results of investigation indicate that the flow velocity at the WJ nozzle outlet has almost the same vibrating type with the inlet velocity vibration. During a vibration cycle, the velocity field of the flow is changing greatly. The serials value of the vibration frequency and amplitude are taken to test their influence on the flow field. The simulation results show that the flow field also changes greatly with the different frequency and amplitude. Based on the obtained results, the mechanism of system pressure vibration influence on the water jet flow field inside the WJ nozzle is obtained, and a new method is provided to optimize the machining process with the aim to improve the machine efficiency and surface quality of the work piece.

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Authors and Affiliations

  1. Key Laboratory of High-efficiency and Clean Mechanical Manufacture, Ministry of Education, Center for Advanced Jet Engineering Technologies (CAJET), School of Mechanical Engineering, Shandong University, Jinan, 250061, China

    Rongguo Hou, Chuanzhen Huang & Hongtao Zhu

  2. School of Mechanical Engineering, Shandong University of Technology, Zibo, 255049, China

    Rongguo Hou

Authors
  1. Rongguo Hou
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  2. Chuanzhen Huang
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  3. Hongtao Zhu
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Correspondence to Chuanzhen Huang.

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Hou, R., Huang, C. & Zhu, H. Numerical simulation ultrahigh waterjet (WJ) flow field with the high-frequency velocity vibration at the nozzle inlet. Int J Adv Manuf Technol 71, 1087–1092 (2014). https://doi.org/10.1007/s00170-013-5493-9

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  • DOI: https://doi.org/10.1007/s00170-013-5493-9

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